diff --git a/include/touchpad.h b/include/touchpad.h
index 469144b1..b07c4dc4 100644
--- a/include/touchpad.h
+++ b/include/touchpad.h
@@ -83,11 +83,6 @@ void tpCalibrate(void);
 	uint16_t tpReadZ(void);
 #endif
 
-#if TOUCHPAD_STORE_CALIBRATION
-	extern void lld_tpWriteCalibration(struct cal_t cal);
-	extern struct cal_t lld_tpReadCalibration(void);
-#endif
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/touchpad.c b/src/touchpad.c
index b38283c2..164e4a36 100644
--- a/src/touchpad.c
+++ b/src/touchpad.c
@@ -32,6 +32,11 @@
 
 #if HAL_USE_TOUCHPAD || defined(__DOXYGEN__)
 
+#if TOUCHPAD_STORE_CALIBRATION
+extern void lld_tpWriteCalibration(struct cal_t cal);
+extern struct cal_t lld_tpReadCalibration(void);
+#endif
+
 /*===========================================================================*/
 /* Driver local definitions.                                                 */
 /*===========================================================================*/